public class Demo9 {
    public static int count = 0;
    public static Object object = new Object();
    public static void main(String[] args) throws InterruptedException {
        Thread t1= new Thread(()->{
            for (int i = 0; i < 10000 ; i++) {
                count++;
            }
        });
        Thread t2= new Thread(()->{
            for (int i = 0; i < 10000 ; i++) {
                count++;
            }
        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
        System.out.println(count);
    }
}
